My lady began cramping right after her cycle a month ago. Her cramping is mild as if she's about to start her period and the sensation comes and goes around her belly button area and upper pelvic area. Last week wednesday (11-25-15) she said she got her period but it's light. I gave her two pregnancy test to take and she took them first thing sunday morning and both came out negative. She told me she wasn't feeling cramping saturday or sunday, but cramping today. She told me her cycle was very light. The week before her cycle she said nipples were extremely sensitive to touch, but now they don't bother her anymore. Knowing that she "got her period" at exactly the same day she said she was gonna get her cycle and got two negative pregnancy tests, can she still be pregnant?